Finding the Fourth Proportional to 84,432.48, 126,679.08 and 39,493.92
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Solution
The fourth proportional to 84,432.48, 126,679.08 and 39,493.92 is: 59,255.08
Step by Step Solution
- Step 1: Write the proportion equation
84,432.48 : 126,679.08 = 39,493.92 : x - Step 2: Convert to fraction form
84,432.48/126,679.08 = 39,493.92/x - Step 3: Cross multiply
84,432.48x = 126,679.08 × 39,493.92 - Step 4: Simplify right side
84,432.48x = 5,003,053,451.19 - Step 5: Solve for x
x = 5,003,053,451.19/84,432.48 - Step 6: Final answer
x = 59,255.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.